UW News
Bernard Hallet
October 6, 2021
How ‘ice needles’ weave patterns of stones in frozen landscapes
![rings of rocks with mountains in background](https://uw-s3-cdn.s3.us-west-2.amazonaws.com/wp-content/uploads/sites/6/2021/10/06084949/Fig1D_lg-150x150.jpg)
A University of Washington researcher is part of an international team that has used modern tools to explain repeating patterns of stones that form in frost-prone landscapes.